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Finding the Fourth Proportional to 322,781.28, 445,494.78 and 186,793.62

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Solution

The fourth proportional to 322,781.28, 445,494.78 and 186,793.62 is: 257,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,781.28 : 445,494.78 = 186,793.62 : x
  2. Step 2: Convert to fraction form
    322,781.28/445,494.78 = 186,793.62/x
  3. Step 3: Cross multiply
    322,781.28x = 445,494.78 × 186,793.62
  4. Step 4: Simplify right side
    322,781.28x = 83,215,582,647.30
  5. Step 5: Solve for x
    x = 83,215,582,647.30/322,781.28
  6. Step 6: Final answer
    x = 257,807.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.